Spy Pen
FailPrices span $2.37–$13.99, mostly outside the sweet spot, so Spy Pen is a Fail.
- Flapen Score
- 44 / 100Ranks 489 of 835 Stationery & Office Supplies niches · −3 vs the category median of 4744
- Market size
- £42K/yr72K searches / yr
- 90-day growth
- -18.3%search demand this quarter
- Competition
- 58%top-5 click share · 17 brands · 48 sellers
Flapen Score
Spy Pen against its category
The dotted line is the Stationery & Office Supplies average. Past it, Spy Pen is stronger. Inside it, weaker.
Market
The Spy Pen market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Spy Pen 72K times last year and spent an estimated £42K. The top 5 brands take 70% of clicks. Demand peaks in Nov–Dec. Flapen scores it 44 out of 100, a Fail.
01 · Demand
8.3% of searches ended in a purchase last week.
Shoppers searched for this 72K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 8.3% of those searches ended in a purchase. Searches in the last 90 days moved -18.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £42K a year.
- Searches, last 12 months
- 72K
- Growth, 90 days vs prior 90
- -18.3%
- Conversion, latest week
- 8.3%
- Market size, estimated
- £42Ka year
- Peak month
- December2.8× the quietest month
- Top search term
- invisible ink pen with uv light19K searches a year
02 · Price
A sale here is worth £7.03.
Listings sell for £7.03 on average, from £2.37 to £13.99. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At £7.03 that is £2K to £4K a year per listing.
- Average price
- £7.03under the $15 to $100 sweet spot
- Price range
- £2.37–£13.99
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- £2K–£4K
- Returns
- 0.5%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is low.
80% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #266 within Pens, Pencils & Writing Supplies. It carries 1,384 reviews at 4.41 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 80%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #266in Pens, Pencils & Writing Supplies
- Average rating
- 4.41 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,384per listing
- Listings tracked
- 25
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 39 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 39 months
Products
Top Spy Pen products & what they sell for
Every tracked product: its share of the shelf, its reviews, and its price.
Top sellers
by 90-day click share
Faburo 7PCS Invisible Ink Pens Magic Pens for Kids with UV Light Magic Markers for Secret Messages Birthday Party Bags Filler Childrens Gifts
- Price
- £4.49
- Rating
- 4.5/5
- Reviews
- 1,396
- Age
- 8y ago

OFFCUP Invisible Ink Pen 14pcs Spy Pen with UV Light Magic Marker Pens with UV Light for Kids Spy Pens Invisible Ink for Writing Secret Message Party Bag Fillers for Kids
- Price
- £5.31
- Rating
- 4.5/5
- Reviews
- 593
- Age
- 2y ago

Tinc Invisible Ink Spy Pen | UV Light | Kids Party Bag Filler | Magic Marker for Secret Messages Multi One size
- Price
- £2.37
- Rating
- 4.5/5
- Reviews
- 983
- Age
- 5y ago

OFFCUP Invisible Ink Pen 7pcs Spy Pen with UV Light Magic Marker Pens with UV Light for Kids Spy Pens Invisible Ink for Writing Secret Message Party Bag Fillers for Kids
- Price
- £4.31
- Rating
- 4.5/5
- Reviews
- 593
- Age
- 2y ago

Toyseum 16 x Invisible Ink Pens With UV Light Spy Pens for Writing Secret Messages Fillers for Kids Party Bags Magic UV Marker for Boys & Girls Favours for Childrens School Prizes Pack of 16
- Price
- £6.68
- Rating
- 4.4/5
- Reviews
- 109
- Age
- 3y ago
Trending
90-day click momentum
THE TWIDDLERS 12 Pack Invisible Ink Pen and Notepad Set with UV Light - Secret Message Spy Toy for Childrens Party Bag Favours and Birthday Gifts
- Price
- £10.89
- Rating
- 4.4/5
- Reviews
- 71
- Age
- 2y ago

OFFCUP Invisible Ink Pen 14pcs Spy Pen with UV Light Magic Marker Pens with UV Light for Kids Spy Pens Invisible Ink for Writing Secret Message Party Bag Fillers for Kids
- Price
- £5.31
- Rating
- 4.5/5
- Reviews
- 593
- Age
- 2y ago

OFFCUP Invisible Ink Pen 14pcs Spy Pen with UV Light Magic Marker Pens with UV Light for Kids Spy Pens Invisible Ink Invisible Pen for Writing Secret Message Party Bag Fillers for Kids(A)
- Price
- £4.87
- Rating
- 4.5/5
- Reviews
- 593
- Age
- 1y ago

DazSpirit 30pcs Invisible Ink Pen UV Light Spy Pens for Kids
- Price
- £12.71
- Rating
- 4.5/5
- Reviews
- 7,137
- Age
- 6y ago

Toyseum 16 x Invisible Ink Pens With UV Light Spy Pens for Writing Secret Messages Fillers for Kids Party Bags Magic UV Marker for Boys & Girls Favours for Childrens School Prizes Pack of 16
- Price
- £6.68
- Rating
- 4.4/5
- Reviews
- 109
- Age
- 3y ago
Newest
by launch date
Invisible Ink Pen for Boy Girl 14 Pcs Spy Pen for Kids with UV Light Disappearing Magic Pens for Kid Party Bag Fillers for Kids Teen Magic Invisible uv Marker Pens for Boys Girls Writing Secret
- Price
- £5.96
- Rating
- 4.7/5
- Reviews
- 7
- Age
- 1y ago

Lepro UV Light Pen 365nm Ultraviolet Torch with Clip Blacklight Detector
- Price
- £6.14
- Rating
- 4.5/5
- Reviews
- 321
- Age
- 1y ago

OFFCUP Invisible Ink Pen 14pcs Spy Pen with UV Light Magic Marker Pens with UV Light for Kids Spy Pens Invisible Ink Invisible Pen for Writing Secret Message Party Bag Fillers for Kids(A)
- Price
- £4.87
- Rating
- 4.5/5
- Reviews
- 593
- Age
- 1y ago

pen 7pcs Spy with UV Light Magic Marker with UV Light for Kids Invisible Ink Party Bag Fillers
- Price
- £4.23
- Rating
- 4.5/5
- Reviews
- 593
- Age
- 1y ago

Gammaeon Invisible Ink Pens Multifunction Security Marker LED UV Light Magic Marker Ballpoint Creative Secret Pen Office Supplies
- Price
- £6.17
- Rating
- 3.4/5
- Reviews
- 8
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take 58% of clicks. Leaders hold, but buyers still shop past them.
Brands
17 rising
Sellers
48
Top-5 brand share
70%
Top 20: 100%
Top-5 click share
58%
Top 20: 96%
Open market
24%
- OFFCUP31%
- Faburo15%
- Tinc11%
- Toyseum8%
- DazSpirit6%
- SureMark5%
Demand
Spy Pen search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Nov, Dec · busiest ÷ quietest = 2.8×
Search terms
Top Spy Pen search terms shoppers use
The exact words shoppers type, with yearly volume, growth, and conversion.
- invisible ink pen with uv light19K/yr
- invisible ink pen15K/yr
- invisible pen9K/yr
- invisible pen with uv light7K/yr
- invisible ink6K/yr
- spy pens for kids7K/yr
- invisible ink pens for kids3K/yr
- spy pens4K/yr
- invisible ink pens3K/yr
Reviews and returns
What reviews say buyers love and hate about Spy Pen
What buyers praise, what they complain about and why they send it back, from the reviews.
Complain
Didnt work
UV LIGHT DOES NOT WORK
Don't work
battery connection not great
Very shows colors on the notes only downside is it takes batteries would be great if rechargeable
But something with the light doesn't always offer full contact with the pins and batteries so fairly often it dims a lot, rattles and even turns off until I shake it or smack it in the air
all same colour
These are not different colours
Terrible quality
Parts missing
Love
good quality
Great product
Such a cool product
Good product worth the money
good value
Good Value
Does the job
Does what it says it does
does the job
Easy to use
Very good, easy to use and with a little torch
Simple to use
Works really well
Works perfectly
Works well
Return
0.5% Return rate 11% Fixable by listing
Didnt work
UV LIGHT DOES NOT WORK
Don't work
Terrible quality
Parts missing
battery connection not great
Very shows colors on the notes only downside is it takes batteries would be great if rechargeable
But something with the light doesn't always offer full contact with the pins and batteries so fairly often it dims a lot, rattles and even turns off until I shake it or smack it in the air
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Spy Pen questions
Answered from the same tracked data.









